Calculated Industries 4090 - Manual (Page 9)

8 — ITI S
HEET
M
ETAL
/HVAC P
RO
Ç 1 Storage Register (M1) — Stores the displayed
value in non-cumulative, permanent Memory (e.g.,
1 0 Ç 1, ® 1 = 10). Good for storing a
single value, for future reference.
Note: Non-cumulative means it only accepts one value (does not
add or subtract) and a second entered value will replace the first.
Permanent means the value is stored even after the calculator is
shut off. To delete a stored value, enter a new value or perform a
Clear All (
Ç x).
Ç 2 Storage Register (M2) — Same function as Ç
1. See above.
Ç 3 Storage Register (M3) — Same function as Ç
1. See above.
RECALL ® KEY
The ® key is used to recall or review stored values (e.g., ® p
to recall a previously entered pitch value). It is also used in review-
ing stored settings and Memory operation (see below).
® ® Clear M+ — Displays and clears M+.
® μ Recall M+ — Displays value stored in M+.
® 1 Recall M1 — Recalls the stored value in M1.
® 2 Recall M2 — Recalls the stored value in M2.
® 3 Recall M3 — Recalls the stored value in M3.
FEET-INCH-FRACTION and METRIC KEYS
The following keys are used for entering units of measure, with ease
and accuracy:
f Enters or converts to Feet. Also used with the i
and / keys for entering Feet-Inch values (e.g., 6
f 9 i 1 / 2).
Note: Repeated presses after Ç toggle between Feet-Inches and
Decimal Feet (e.g., 6 f 9 i 1 / 2 Ç f = 6.791667
FEET; press f again to return to Feet-Inch-Fractions).